William p



(No Model.)

W. P, KOGKGGEY. SECONDARY BATTERY PLATE.

Patented Mar. 4, 18Q0 -batteries; and it consists, in general, of a A'an Oxide ot lead, metallic A'wachsen-nps ot lend,

UNITED STATES PATENT. Orihuelaj WILI'L'IAI"Pz'fiKOOKOGEY, OF BROOKLYN, NEW YORK, AssIoNon 'ro jrnn' KOOKOGEY ELECTRIC COMPANY.

SECON GARY-BATTERY FLA'TE...

i SPECIFICATION forming part of Letters Patent No. 422, 533, dated March 4, 1890.

Application fiied'September 26, 1889. Serial No. 325,210. (No model.)

To all whom-it may concern:

Be itknown that I, WiLLIAMP. KooKOoEY, of the city of Brooklyn, connty of Kings, and State Oi New York, have invented anew and ,useful Storage-Battery Plate, of which the following is a specification.

My invention is a new plate for secondary pocket or envelope of'thin sheet-lead containing active material, and having its walls pierced or perforated to allow of circulation.

-In the accompanying,drawings, Figure l is a view of snch plate made ont of two sheets by simply turning the edges of one sheet over the other. Fig. 2 .is a view of a single sheet Of lead perforated and of tlie'form to make a pocket-plate by folding one part over the other. Fig. 3 is a sectional view on the line a: of Fi. l.

A and B are sheets of lead-foil or other comparatively thin sheet-lead, B being somewhat larger than A, and having its edges turned over the edges of A, as at c.

In Fig. 2, D is a single sheet made to fold, one. part over the other, and having flaps el upon one part, which are to be folded over the edges of the other half. Each of the -containingavalls of the pocket has perfrations d, through which the electrolyte gains access to theinterior of the pocket. lVitliinl the pocket is placed the active material, or rather the material tobeeome active, which may'lic other sheets of sheet-lead',``r any form 'of lead, as most desirable. This is shawn by dots in Fig. l at g, where one of" the corners i is tnrned hack.

'The essential idea of this invention is the i making ot' a plate in the forni ot a pocket,

within which the active material may lie and be held in the form ot a past-e or powder', or

whatever form, withoutl any danger of dis# integration or any injury' tothe plate in the action Of the battery, the containing-walls ol' lead acting with the active material to increase its efficiency, and at the same time always giving sufficient solidity tothe plate, se that it retains its form. Any methodot' unit ing the edgesl of the containing-walls maybe used besides that Oli' folding one` over the 'other-such, for instance, as soldering orclamping them together, the Sheets being then Any form of perfov ration 1nay be used. A particularly nselnl` made of .the same size.

oneis that shown in an application for a see.;

ondary-battery plate tiled simultaneouslyherewithySerial No. 325,209, consisting of a large number of minute punctnresmadeby a sharp instrument. v

I claim as my invention A plate for secondary batteries, consisting of a pocket or envelope of shectlead, perforated to allow of circulation, having its edges closed by folding the edges ol' one sidel or sheet 0l' the plate over the edges Ol`l theother side or sheet, and containing active material or material to become active, sn est nntall y as described.

1n witness whereof l heronn-io sei m'yhand, this :24th day of Septonilnir, lfikthin ihe pres# ence of two witnesses. l

WM. l. KUHKUHEY. Witnesses'.

Aramon E. WAnnAn'r, naman S'roi-nis (fm nn. 

